Wiring duct attachment

Abstract

To provide a wiring duct attachment that can be easily mounted and flexibly cope with extension of a cable by increasing an amount of accommodation in a wiring duct.SOLUTION: A wiring duct attachment 1 includes: a main body unit 2 having a space for housing wiring therein and a hook-shaped main body side engaging unit 21 formed by curving lower ends of left and right side walls; and a cover unit 3 having a cover side engaging unit 31 engaged with the main body side engaging unit 2 at left and right upper ends. The wiring duct attachment of a wiring duct is used by detachably engaging the main body side engaging unit 21 and the cover side engaging unit 31. The wiring duct attachment includes: a first engaging unit 11 that is formed in a hook shape opposed to the main body side engaging unit 21 of the main body unit 2 and being engaged with the main body side engaging unit 21; a second engaging unit 12 that is opposed to the first engaging unit 11 and having a shape matching a shape of a curved section of the main body side engaging unit 21; and a third engaging unit 13 having the same shape as a hook-shaped shape of the main body side engaging unit 21 and engaging with the cover side engaging unit 31.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to an attachment for a wiring duct that is attached to the wiring duct to raise the height of the wiring duct. [Background technology]

[0002] 2. Description of the Related Art In electrical equipment such as control panels, wiring ducts are used to organize and house the wiring of various cables.

[0003] FIG. 12 is a perspective view showing the configuration of a conventional wiring duct. As shown in FIG. 12, some conventional wiring ducts are composed of a main body 100 having a U-shaped cross section and a cover 200 that covers the open side of the U-shaped main body 100. The left and right lower ends of the main body 100 are provided with symmetrical hook-shaped main body engaging portions 101, respectively, and the left and right upper ends of the cover 200 are provided with cover engaging portions 201 that engage with the main body engaging portions 101. By detachably engaging the main body engaging portions 101 and the cover engaging portions 201, which are provided along the length of the main body of the wiring duct, the conventional wiring duct can organize and house wiring. Furthermore, side holes 102 are provided in the side walls of the main body 100 of the wiring duct to allow cables to be pulled into and pulled out of the wiring duct.

[0004] Various proposals have been made for wiring ducts with such a configuration. For example, Patent Document 1 discloses a structure for preventing the cover from falling off of a wiring duct provided in an electrical equipment storage box, in which the cover is provided with a fall-off prevention member that abuts against the longitudinal end face of the main body, or the main body is provided with a fall-off prevention member that abuts against the longitudinal end face of the cover, in order to prevent the cover from falling off of the main body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2018-182890 Summary of the Invention [Problem to be solved by the invention]

[0006] However, with conventional wiring ducts, when additional cables are added during control panel modifications or construction, they may not all fit inside the duct. In this case, if a wiring duct with a larger capacity is installed, it is difficult to maintain the existing wiring layout. While an approach to accommodate additional cables is to secure the cover and main body with cable ties or the like through the side holes on the side of the main body, this approach can result in some cables protruding from the duct, exposing them to potential cable breakage and creating a poor appearance.

[0007] Therefore, the present invention has been made in consideration of such problems, and aims to provide an attachment for a wiring duct that can be easily attached to the wiring duct, raises the height of the wiring duct to increase the capacity that can be stored within the wiring duct, and allows for flexible response to the addition of cables. [Means for solving the problem]

[0008] In order to solve the above problems, the wiring duct attachment of the present invention is an attachment for wiring ducts that has a main body portion having a space therein for accommodating wiring, and has hook-shaped main body engaging portions formed by curving the lower ends of the left and right side walls, and a cover portion having cover-side engaging portions at the upper ends of the left and right sides that engage with the main body engaging portions, and is used by detachably engaging the main body engaging portions with the cover-side engaging portions, and is characterized by having: a first engaging portion that is formed in a hook shape opposite the main body engaging portion of the main body portion and engages with the main body engaging portion; a second engaging portion that faces the first engaging portion and has a shape that matches the shape of the curved portion of the main body engaging portion; and a third engaging portion that has the same shape as the hook-shaped shape of the main body engaging portion and engages with the cover-side engaging portion.

[0009] This allows the wiring duct to be raised, expanding its diameter and increasing the amount of wiring it can accommodate. Furthermore, since it can be attached to the wiring duct with a simple operation, it can also flexibly accommodate additional cables.

[0010] Here, it is preferable that the wall is made of a material harder than the sidewall of the main body of the wiring duct.

[0011] This allows the wiring duct to be maintained in a raised state. [Effects of the Invention]

[0012] As described above, the wiring duct attachment according to the present invention can raise the height of the wiring duct to increase the capacity of the wiring duct. Furthermore, it can be attached to the wiring duct with simple work, and can flexibly accommodate the addition of cables. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing a wiring duct attachment according to an embodiment of the present invention; [Figure 2] FIG. 2 is a rear perspective view of the wiring duct attachment. [Figure 3] FIG. 2 is a right side view of the wiring duct attachment. [Figure 4] FIG. 2 is a front view of the wiring duct attachment. [Figure 5] FIG. 2 is a rear view of the wiring duct attachment. [Figure 6] FIG. 2 is a plan view of the wiring duct attachment. [Figure 7] FIG. 2 is a bottom view of the wiring duct attachment. [Figure 8] FIG. 10 is a diagram showing a state before the wiring duct attachment is attached. [Figure 9] FIG. 10 is a diagram showing a state in which the wiring duct attachment is being attached. [Figure 10]10 is a diagram showing a state in which the wiring duct attachment is attached to the wiring duct. FIG. [Figure 11] 10A and 10B are diagrams illustrating a state in which the wiring duct attachment is used. [Figure 12] FIG. 10 is a perspective view showing the configuration of a conventional wiring duct. DETAILED DESCRIPTION OF THE INVENTION

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wiring duct attachment according to the present invention will be described in detail below with reference to the drawings based on an embodiment.

[0015] Fig. 1 is a perspective view showing a wiring duct attachment according to an embodiment of the present invention, Fig. 2 is a rear perspective view, Fig. 3 is a right side view, Fig. 4 is a front view, Fig. 5 is a rear view, Fig. 6 is a plan view, and Fig. 7 is a bottom view.

[0016] First, the wiring duct in which the wiring duct attachment 1 is used is shaped like a rectangular pillar overall, and has space to accommodate the wiring of various cables in electrical equipment such as control panels.It is used by combining a main body part with one side open and having space inside to accommodate the wiring, and a cover part that covers the open side of the main body part in a detachable manner.

[0017] The wiring duct attachment 1 is a member disposed between the main body and cover of the wiring duct to expand the diameter of the wiring duct, i.e., the space for accommodating the wiring. The wiring duct attachment 1 is an attachment member that can be detachably attached to the main body and cover of the wiring duct as needed to expand the diameter of the wiring duct. The upper end of the wiring duct attachment 1 is attached to the lower end of the side wall of the main body of the wiring duct, and the lower end of the wiring duct attachment 1 is attached to the upper end of the cover of the wiring duct.

[0018] The wiring duct attachment 1 is made by bending a plate-like material that is about as thin as the sidewalls of the main body of the wiring duct, for example, by bending hard plastic. As will be described later, the sidewalls of the main body of the wiring duct are made of a flexible material. In contrast, the wiring duct attachment 1 must be made of a material that is at least harder than the sidewalls of the main body of the wiring duct, because it must maintain the raised state of the wiring duct.

[0019] First, an engagement portion is formed on the upper side of the wiring duct attachment 1 so as to engage with a main body side engagement portion formed in a hook shape symmetrically at the lower end of the side wall of the main body of the wiring duct. The engagement portion on the upper side of the wiring duct attachment 1 is composed of a first engagement portion 11 formed in a hook shape that faces the hook portion of the main body side engagement portion, and a second engagement portion 12 formed in a curve so as to face the first engagement portion 11.

[0020] Next, third engagement portions are formed on the lower side of the wiring duct attachment 1. These third engagement portions engage with cover-side engagement portions formed to engage with main-body-side engagement portions at the left and right upper ends of the cover of the wiring duct. More simply stated, the third engagement portions are formed in the same direction and with the same hook shape as the main-body-side engagement portions provided at the lower ends of the side walls of the main body of the wiring duct.

[0021] By adjusting the distance between the first engagement portion 11 and the second engagement portion 12 on the upper side of the wiring duct attachment 1 and the third engagement portion 13 on the lower side of the wiring duct attachment 1, that is, by adjusting the length of the intermediate portion between the first engagement portion 11 and the second engagement portion 12 and the third engagement portion 13, the diameter of the wiring duct can be further expanded, the wiring duct can be raised, and the capacity inside the wiring duct can be further increased.

[0022] The attachment of the wiring duct attachment 1 configured as above to a wiring duct will now be described.

[0023] FIG. 8 is a diagram showing the wiring duct attachment 1 in a state before being attached.

[0024] Here, the positional relationship is shown in which the wiring duct attachment 1 is placed between a main body 2 having a roughly U-shaped cross section and a wiring duct cover 3 that covers the open side of the main body 2. The main body side engaging portions 21 at the bottom ends of the left and right side walls of the wiring duct main body 2 are formed symmetrically in a hook shape and engage with the first engaging portion 11 and the second engaging portion 12 of the wiring duct attachment 1, and the cover side engaging portions 31 at the top left and right ends of the wiring duct cover 3 engage with the third engaging portion 13 of the wiring duct attachment 1.

[0025] FIG. 9 shows a state in which the wiring duct attachment 1 is being attached.

[0026] First, the body-side engaging portions 21 at the lower ends of the left and right side walls of the main body 2 of the wiring duct are engaged with the first engaging portion 11 and the second engaging portion 12 of the wiring duct attachment 1. The shape of the curved portion of the second engaging portion 12 is formed to match the shape of the curved portion of the main body engaging portion 21 of the main body 2. The side walls of the main body 2 of the wiring duct are provided with side holes 4 to enable the operation of pulling cables into and pulling cables out of the wiring duct. To facilitate this operation, the side walls of the main body 2 are made of a flexible material, and the body-side engaging portions 21 at their lower ends are also easily flexible. Therefore, after fitting the body-side engaging portions 21 into the first engaging portions 11 of the wiring duct attachment 1, it is easy to fit and attach the second engaging portions 12, which are curved to match the curvature of the curved portions of the main body engaging portions 21 on the inside of the side walls of the main body 2.

[0027] FIG. 10 is a diagram showing a state in which the wiring duct attachment 1 is attached to a wiring duct.

[0028] Next, the cover-side engaging portions 31 at the left and right upper ends of the wiring duct cover portion 3 are engaged with the third engaging portions 13 of the wiring duct attachment 1. The third engaging portions 13 are formed in the same hook shape as the main body-side engaging portions 21, so that the third engaging portions 13 can be easily fitted into the cover-side engaging portions 31 to engage them.

[0029] The wiring duct attachment 1 attached in the above manner raises the height of the wiring duct and expands the diameter of the wiring duct, thereby increasing the capacity of the wiring duct.

[0030] FIG. 11 is a diagram showing the wiring duct attachment 1 in use.

[0031] In practice, as shown in FIG. 11, a plurality of wiring duct attachments 1 are used, arranged at regular intervals along the length of the wiring duct.

[0032] As described above, the wiring duct attachment 1 of this embodiment is made of a material harder than the side wall of the main body of the wiring duct, and is provided with a first engagement portion 11 on the upper side as engagement portions that engage with the lower end of the side wall of the main body of the wiring duct, and a second engagement portion 12 that is curved to face the first engagement portion 11, and a third engagement portion on the lower side that is formed in the same hook shape as the lower end of the side wall of the main body of the wiring duct, so that the wiring duct can be raised to expand its diameter and thereby increase the capacity accommodated within the wiring duct. Such a wiring duct attachment 1 can be attached to a wiring duct by a simple operation of engaging the first engagement portion 11 and the second engagement portion 12 of the wiring duct attachment 1 with the main body side engagement portions 21 located at the lower ends of the left and right side walls of the main body portion 2 of the wiring duct, and then engaging the third engagement portion 13 of the wiring duct attachment 1 with the cover side engagement portions 31 located at the upper left and right ends of the cover portion 3 of the wiring duct, thereby allowing for flexible response to additional cables being added.

[0033] Up to this point, the wiring duct attachment according to the present invention has been described based on an embodiment, but the present invention is not limited to this. Various design modifications are possible as long as the object of the present invention can be achieved and the gist of the invention is not deviated from, and all of these are included within the scope of the present invention.

[0034] For example, in the above embodiment, the main body engaging portion at the bottom end of the side wall of the main body of the wiring duct is formed into a hook shape facing outward from the wiring duct, but if the hook shape faces inward from the wiring duct, the orientation of the first engaging portion, second engaging portion, and third engaging portion of the wiring duct attachment can be changed. In this case, the curved portion of the second engaging portion can be formed to match the curved shape of the main body engaging portion at the outside of the side wall of the main body.

[0035] In addition, in the above embodiment, the engagement portion attached to the main body side of the wiring duct is composed of a first engagement portion and a second engagement portion, but the engagement portion attached to the cover side of the wiring duct may also be composed of a first engagement portion and a second engagement portion. [Industrial Applicability]

[0036] The wiring duct attachment according to the present invention is useful as a member for raising the height of wiring ducts in electrical equipment such as control panels. [Explanation of symbols]

[0037] 1 Wiring duct attachment 2,100 Main unit 3,200 Cover 4,102 side hole 11 First engagement portion 12 second engagement portion 13 Third engagement portion 21,101 Body side engagement part 31,201 Cover side engagement part

Claims

1. A wiring duct attachment for a wiring duct, comprising: a main body having a space therein for accommodating wiring, and having hook-shaped main body engaging portions formed by curving the lower ends of the left and right side walls; and a cover having cover engaging portions at the upper ends on the left and right that engage with the main body engaging portions, the main body engaging portions and the cover engaging portions being detachably engaged with each other for use; a first engaging portion formed in a hook shape facing the main body side engaging portion of the main body portion and engaging with the main body side engaging portion; a second engaging portion that faces the first engaging portion and has a shape that matches the shape of the curved portion of the main body side engaging portion; a third engaging portion having the same hook-like shape as the main body engaging portion and engaging with the cover engaging portion; An attachment for a wiring duct characterized by:

2. It is made of a harder material than the sidewall of the main body of the wiring duct.

2. The wiring duct attachment according to claim 1, wherein the wiring duct attachment is a duct.

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